Improvement in planing-tools



F. RAUH.

PLANING T ooL.

UNITED STATES FREDERICK RAUH, OF PITTSBURG, PENNSYLVANIA.

IMPROVEMENT IN PLANING-TOOLS.

Specification forming part of Letters Patent No. 181,594, dated August 29, 1876; application filed June 19, 187,6.

To all 'whom t may concern Be it known that I, FREDERIOK RAUH, of Pittsburg', in the county of Allegheny and State 0f Pennsylvania, have invented 11nprovenient in Planing'lools; and I do hereby together, and furnished with adjusting-screws,

adjustable cutter, and handle, combined, arranged, and operating with relation to each other, as hereinafter described.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction andoperation.

In the drawings, Figure l is a side view of myimprovement. Fig.2 is a front view. Fig. 3 is a vertical section. Fig. 4 is a broken section. showing the interior ofthe pivoted jaws.

Thejaws A and B are pivoted at C, and are provided with a handle, l. i Thejaw D is pivoted to the jaw A at e, the end f of which passes through an aperture in the jaw A, as shown in Figs. 2, 3, 4. The jaws are adjusted through the medium of screws t' and j j, the screw t' adjusting the jaw D, and the screw j adjusting the jaw A with relation to the jaw B, thejaw D being used with relation to the jaw B, for the purpose of planing articles of small diameter, thejaws A and B heilig used for planing-articles of larger diameter. The jaws A and B are furnished with screwthreads, as indicated at m in Fig. 4. The end fof the jaw D is also furnished with screwthreads, as indicated at m' in Fig. 4. rI he jaw B is furnished with an adjustable planebit, g, held in position by means ofthe setscrew lz.

The operation of my improvement is as follows: The jaws are adjusted with relation to the diameter of the cylindrical article to be planed, so that the screw-threads of the jaws will impinge upon it, and, by revolving the tool around the article, the bit g will plane or cut off the surface in proportion to the cut given to it, the screw m gradually leading the tool along the cylindrical article.

Having thus described my improvement, what I claim is- The combination of the jaws A, B, and D, adjusting-screws t' and j, and plane-bit g, arranged and operating with relation to each other, substantially as herein described, and for the purpose set forth.

FREDERICK RAUH.

Witnesses:

A. C. J oENsoN, GEORGE HIRscHINGER. 

